user
Write a response that appropriately completes the request.

### Instruction:
Who won the most Oscars in the 21st century?

### Response:
assistant
Helen Mirren has won the most Oscars in the 21st century with four Oscars for Best Actress for The Queen (2006), Best Actress in a Leading Role for The Last Station (2009) and Best Actress in a Leading Role for The Madness of King George (1994).